(2S,4R,5R,6S)-2-benzoyloxy-7-(t-butyldimethylsilyloxy)-5-(p-methoxybenzyloxy)-4,6-dimethylheptan-3-one

[2S,4S,5R,6S]-7-(t-butyldimethylsilyloxy)-5-(p-methoxybenzyloxy)-4,6-dimethylheptan-2,3-diol